Means for holding furnace-wall blocks against tubes



April 28, 1931. E. e. BAILEY ET'AL 1,802,748

MEANS FOR HOLDING FURNACE WALL BLOCKS AGAINST TUBES Original Filed Oct. 20, 1927 ATTORN EYd Patented Apr. 28, 1931 UNITED STATES PATENT oFFica EBVIN G. BAILEY, OF EASTON, AND RALPH. M. HABDGROVF'. F BETHLEHEM, PENNSYL- VANIA, ASSIGNDRS T0 FULLER LEH'IGH COMPANY, OF FUIIIIERTON, PENNSYLVANIA,

A. CORPORATION OF DELAWARE MEANS FOR HOLDING FURNACE-WALL BLOCKS AGAINST TUBES Original application filed October 20, 1927, Serial No. 227,456. Divided and this application filed November 17, 1928. Serial No. 320,040.

This invention relates to a furnace wall I and blocks with means for keeping the furnace wall blocks or tile in firm contact with water wall tubes located in the furnace wall so as to maintain a good contact for the best heat conducting between the tile and tubes, and yet provide attachment in such a manner that broken or injured blocks or tile can be removed and replaced by new ones. This is W a division of our application Ser. No. 227 ,456,

filedOctober 20,1927.

The invention will be understood from the. description in connection with the accompanying drawings in which Fig. 1 is a side view partly broken away showing a portion of the furnace wall, and Fig. 2 is a section along the line 22 of Fig. 1.

In the drawings reference character 1 indicates water wall tubes. of the furnace wall to which the water wall blocks or tile 2 are attached. Each block or tile 2 is somewhat T-shaped in cross section and is provided with rounded portions or curved surfaces 3 to fit against the tubes and with an extension 4 that projects beyond the center lines of the tubes.

Lugs 5 extend part way across the projections 4, thereby leaving spaces near the ends of the lugs as indicated at 6, so that the hook portions of the holding members can be readily inserted and spaces are left between the lower edges of the lugs 5 and the tubes 1 to accommodate the hook portions of the holdin members. Holding members 7 are provi ed with hook portions 8 that extendunder the lugs 5 so that when the bolts 9 that extend through threaded holes near the ends of the holding members 7 are screwed in the tile 2 will be drawn into firm engagement with the tubes 1. When it is desired to remove one of the-tile 2 the bolts 9 of the corresponding holding members 7 are loosened and holding members are slid a short distance longitudinally of the tubes, so that the hook portion 8 i thereof will pass out beyond the ends of the lugs 5 through the space 6, thus loosening the tile.

Changes and modifications can be made without departing from the spirit or scope of the invention. It is to be understood that where the word tile is used in the specification and claims it is meant to include blocks as well, that may be made entirely of metal, or composite blocks made of metal and refractory material.

We claim:

1. In a furnace wall, water tubes, tile having a portion extending between said tubes, lugs along the sides ofsaid extending portion, and a holding member contacting with adjacent tubes and having hook portions contacting with said lugs.

2. In a furnace wall, water tubes, tile having a portion extending between said tubes, lugs along the sides of said extending portion, a holding member contacting with adjacent tubes and having hook portions contacting with said lugs, and means for tightening said holding member against said lugs.

3. In a furnace wall, water tubes, tile having a portion extending between said tubes, lugs-along the sides of said extending portion, a holding member contacting with adjacent tubes and having hook portions contacting with said lugs, and means for tightening saidholding member against said lugs, said means comprising screw threaded bolts. 4. In a furnace wall, water tubes, tile having a portion extending between said tubes, recesses in the sides of said extending portion, lugs extending along said recesses, and a holding member contacting with adjacent tubes and having hook portions extending into said recesses. I

5. In a furnace .wall, water tubes, tile having a portion extending between said tubes, recesses in the sides of said extending portion, lugs extending along said recesses and terminating short of the ends thereof, and a holding member contacting with adjacent til tubes and having hook portions extending into said recesses.

6. ,In a furnace wall, water-tubes, tile having a portion extending-between said tubes,

2 *lugs .along the sides of said extending portion, and a holding member contacting with, adjacent tubes and having hook portions contacting with said lugs and extending toward each other. 10 ERVIN G. BAILEY.

, I RALPH M. HARDGROVE. 

